I am looking at putting air springs into my 67 camaro used for street/strip but i am not sure what to use or what to get?? what would be my best bet or if i should stay with conventional springs what should i look for?

If you want to go air springs, go to air ride suspension. Very expensive (to me anyways), but way up there on the cool factor. I would get a good set of coils/leafs (Hotchkiss, Global West, etc) and call it a day. You can get pretty good performance out of a set of coils/leaf springs.

Go to David Pozzi's web site, it has loads of information on what you are looking for.